One woman I talked to at S&W's customer service said that she agreed that it shouldn't have gone out the door like that. But, she told me to "take it to the range and put some rounds through it" before sending it back, to see if any other issues arise with the gun. I'd rather not, to be honest. I'd be sending back a used gun and with my luck, they'd say "it's been used, we can't fix this, you may have scratched it while at the range."
Yeah, I'm a pessimist.